Finding the Third Proportional to 253,384 and 550,870

Step by Step Solution

1. Step 1: Write the proportion equation
   253,384 : 550,870 = 550,870 : x
2. Step 2: Convert to fraction form
   253,384/550,870 = 550,870/x
3. Step 3: Cross multiply
   253,384x = 550,870 × 550,870
4. Step 4: Simplify right side
   253,384x = 303,457,756,900
5. Step 5: Solve for x
   x = 303,457,756,900/253,384
6. Step 6: Final answer
   x = 1,197,620.04